Cooking range



In? a g2 d COOKING RANGE Filed April 30, 1938 2 Sheets-'Sheet l Feb. 18, 1941. A. RscHuLz 2,23`2g482 COOKING RANGE Filed April so, 193e 2 sheets-sheet 2 Patented Feb. y18, 1941 CGOKING RANGE Arthur r. schuh, museale, m.. signor to G. .e J. Teller, Chicago. Ill., a partnershipv composed of Grace Teller and Jacob Teller applicati@ April so, 193s, serial No. 205,311

4 Claims.

This invention relates to cooking ranges.

A-primary object of the invention'is the provision of a unitary construction forvranges comprising a 'gas burner, utensil support, and drip pan, thereby promoting cleanliness as Well as. positive maintenance of the operative relations construction in either form of manufacture pos- Q.

sessing plane and luniformly curved surfaces whereby it is substantially immune to the collection of dirt and is capable of being easily cleaned.

A still further object of the invention is the provision of a structure of the general character above referred to which is relatively simple in construction, highly efiicient in operation, and which is capable of manufacture at relatively low cost.

For a more complete understanding of the nature and objects of the invention, reference should be `had to the following detailed description taken in connection with the accompanying drawings, wherein- Fig. 1 is a top plan view of a` gas burner constructed in accordance with one'physical embodiment of the invention.

Fig. 2 is a transverse sectional view in a plane substantially as represented by the line 2-2 in Fig. 1. I

Fig. 3 is a top plan view of a gas burner constructed. in accordance with another embodiment of the invention.

Fig. 4 is a transverse sectional view in a plane substantially as represented by the line 4-4 in Fig. 3.

Fig. 5 is a perspective view of a `burner substantially of the character indicated in Figs. 3 and 4.

Fig. 6 is a transverse sectional view depicting a still further embodiment of the invention.

Referring now in detail to the drawings, by reference characters. and wherein like characters designate like parts l0 (Figs. 1 and 2) designate a former unit in its entirety:

The burner unit I0 is preferably constructed from stainless sheet steel and comprises a at sheet metal top plate I I preferably provided with a continuous marginal ange I2. The top plate I I is provided with a plurality (preferably three) n of indentations, depressions or wells I3 in surrounding relation and symmetrical to a central chamber I4, which chamber is defined by the inner walls I3a of the indentations I3, a top wall I5 co-planar with plate II and a bottom walllo I6 provided by the central portion of a domed disk I'I having a marginal flange Ila and suita'bly connected with plate II by spot or hydrogen welding.

- A mixer tube I8 is connected with the wall I6 15 of disk l1 by means of a Spanner nut I9 and gasket 20, the mixer tube being thus in communication with the chamber I4 to which gas is delivered through the mixer` tube I8.

Each of the walls l3a isprovided with a gas 20 port preferably in the form of an elongated slit 2| substantially of a length equal to the width of the wall whereby gas will enter the depressions I3 land when ignited will produce flames of substantially fan shape.

In order to provide adequate secondary air supply for the ames, each depression is providedv with an elongated air opening or louvre 22 immediately below the respective gas port 2| for admitting air'substantially in a direction normal 30.

to the ow of the gas. I

The air openings are preferably provided by slitting and pushing upwardly the combined material of sheet II and disk I1 adjacent the slits as is clearly indicated, the arcuate deflected por- 35 tions 23 acting to direct the air toward the gas emitting ports 2l for most efficient combustion.

. The burner unit is completed by the provision of utensil supports 24 which are preferably formed from elongated strips of sheet steel whose 40 opposite edges are upturned as` indicated at 25 and which are secured to the plate Il by spot or hydrogen welding as indicated at 26.

The supports 24 radiate Vfrom the axis of the mixer tube I8 and are disposed with their inner 45 ends between adjacentdepressions I3.

It will be appreciated from the foregoing disclosure that a burner is provided in accordance with this invention which is unitary, light in weight, readily adapted for construction from high grade material as stainless steel and which, due to the novel arrangement of cooperating gas and air ports is highly efficient in operation.

While a single burner is disclosed, it will be readilyunderstood that the top plate II may be of any desired dimensions and provided with a plurality of gas burner constructions similar to the single one herein disclosed.

In Figs. 3, 4 and 5 is disclosed a modified arrangement of gas burner and which comprises a at sheet metal top plate a having a depression 28.

'I'he bottom of the depression 28 comprises an annular ring-like portion 2 9 having a marginal out-turned flange 30 surrounding a central air opening 3|.

Surrounding the depressed portion 28 is a depressed -sheet metal ring 32 which is suitably secured to plate l la as by spot or hydrogen welding and which in cooperation with depression 28 provides a circumferential gas chamber 33 having an enlarged portion l34 to the base of which is secured a mixer tube 35 by means of a Spanner nut 36 and suitable gasket.

The ring 32 is provided with a central air opening 31 in registration with the aforesaid air opening 3|.

The circumferential wall 28a of the depression 28 is provided with a series of relatively close apertures providing gas 'ports 38 which communi cate with the gas chamber 33.

Removably seated on the flange 30 are a plurality of 'spacer blocks 39 which are suitably secured to and support a combined sheet metal baille and drip pan member 40.

The blocks 39 provide a secondary air admissionary opening 4| and the upwardly curved marginal flange 42 on member 40 directs the air into proper mixing position with the gas passing through the ports 38 whereby a highly ecient flame is provided.

'Ihe burner is completed by securing, as by welding, a'plurality of cooking utensil supports 43 to the top plate Ila. Also, in accordance with this form of the invention, the plate ||a may be of any desired dimensions and provided with a plurality of the burner constructions.

While the burner or range construction is hereinbefore disclosed as being formed of sheet metal stampings, the invention is not limited thereto, as same is readily capable of manufacture by casting as is `represented in Fig. 6. The burner unit represented in Fig. 6 is similar to that represented in Fig. 2 and possesses the same desirable characteristics.

The construction according to Fig. 6 may readily be provided by an aluminum alloy die casting or some other form of casting from various other materials.

'Ihe cast form in accordance with Fig. 6 comprises a :dat cooking top IIb having a depending marginal flange |2a.

'Ihe plate b merges into a plurality of depressions or wells l 3b in surrounding relation to a central chamber Ila.

A mixer tube |8a is detachably connected with the chamber |4a.

'I'he walls |3c are each provided with an elongated gas Dort 2Ia and secondaryv air openings 22a are formed in the bottom walls 'of the wells Thusit will be seen that this form of construction will function in the same manner as that disclosed in Fig. 2, the prerequisite being, whether the burner units are formed from sheet metal or castings, that a unitary construction be provided for effecting the desirable characteristics hereinbefore set forth.

While there is herein disclosed only certain specic embodiments of the invention, such are to be considered as illustrative only, and not restrictive, the scope of the invention being dened in the sub-joined claims.

What is claimed and desired to Letters Patent is:

1. A gas burner construction comprising a iiat cooking top plate, a plurality of depressions in the secure by U. S.

',plate in circumscribing relation to a portion of the'at top plate, a second plate rigldlysecured to the rst plate and providing in conjunction with adjacent walls of the depressions and said portion of the fiat top plate a gas chamber, gas ports in said walls of the depressions, and air openings in the bottom walls of said depressions. 2. The structure defined in claim 1 wherein said depressions are elongated and wherein said gas ports and air openings are in the form oi.' elongated slits, and with the air openings substantially parallel with the respective gas ports.

3. A gas burner construction comprising a iiat top plate, a plurality of depressions in the plate in circumscribing relation to a portion of the liat top plate, a second plate rigidly secured tothe rst plate and having a dome shaped portion providing with the adjacent walls of said depressions and said portion of the top plate a gas chamber centrally of said depressions, a mixer tube detachably connected with said second plate for conveying gas to said chamber, gas ports in the said walls of said depressions, and air openings in the bottom walls of said depressions and said lsecond plate.

ports.

ARTHUR P. SCHULZ. 

